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Author Question: Which essential gas is often in an unusable form in the ocean and atmosphere? a. nitrogen b. ... (Read 18 times)

Engineer

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on: Aug 22, 2018

Which essential gas is often in an unusable form in the ocean and atmosphere?
  a. nitrogen
  b. oxygen
  c. carbon dioxide
  d. methane
  e. hydrogen



Question 2

What is a primary source of oxygen to ocean surface water?
  a. decay of marine organisms
  b. photosynthesis
  c. chemosynthesis
  d. respiration from bacteria
  e. large quantities of organisms



akpaschal

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Reply #1 on: Aug 22, 2018
Answer to Question 1

a

Answer to Question 2

b


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